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This page contains my technical notes in the last few years. I find it easier for me to learn and refresh new/old concepts when I summarize in this style.

Most of them are typically organized to follow the structures of textbooks in each domain, but I have re-organized many structures so that it makes more sense to me. Some notes are only placeholders to make the tree structure complete. All notes here are roughly hex-indexed from theoretical topics to practical topics (abstract to concrete). It starts from the most foundamental ZF(C) axioms to the "most" practical topics of speech recognition (which is my research focus).